 | | Journal (article/letter/editorial) | | NOTE Zinc–germanium ores of the Tres Marias Mine, Chihuahua, Mexico Bernhardt Saini-Eidukat & Frank Melcher...2008 Abstract The Tres Marias carbonate-hosted Zn–Ge deposit in Chihuahua, Mexico contains sphalerite...sulfates, others are enriched in silicates such as hemimorphite and willemite. The gangue assemblage includes...and galena by siliceous aqueous fluids. The Tres Marias deposit has hybrid characteristics consisting...Ge-rich hemimorphite, willemite, and Fe oxide mineralization. Keywords Tres Marias . Mexico . Willemite |  | | Journal (article/letter/editorial) | | supergene environment: smithsonite, cerussite, hemimorphite, sauconite, pyromorphite, Pb-vanadates and Fe-oxy-hydroxides...samples contain high amounts of goethite and hemimorphite. Whole rock chemical analyses and laser ablation... the highest Ge amounts are associated with hemimorphite and goethite. CONTACT Nicola Mondillo nicola...availability) have probably favoured the formation of hemimorphite over smithsonite, thus enhancing the possibility...2009. Zinc-germanium ores of the Tres Marias Mine, Chihuahua, Mexico. Miner Deposita. 44:363–370. |  | Choulet, Flavien, Barbanson, Luc, Buatier, Martine, Richard, James, Vennemann, Torsten, Ennaciri, Aomar, Zouhair, Mohamed (2017) Characterization and origin of low-T willemite (Zn2SiO4) mineralization: the case of the Bou Arhous deposit (High Atlas, Morocco) Mineralium Deposita, 52 (7) 1085-1102 doi:10.1007/s00126-016-0675-7 | Journal (article/letter/editorial) | | possibility to precipitate hemimorphite. According to McPhail et al. (2003, 2006), hemimorphite is stable with respect...temperatures below 90– 100 °C. This may explain why hemimorphite (Zn 4 Si2O7(OH)2·(H2O)) is frequently reported...inverted during the Tertiary (Leblanc 1968). At the mine, the bedding is steep to vertical and even overturned...rm platfo L. 50 125 250 km L. 25 Level 0 b Mine dumps l1-2m l1 b Karst cavities l4 l3 l2m ...covered by Lower Jurassic rocks (l1 to l4). The mine, made up of four levels (from level 0 to level 100) |  | Mondillo, Nicola, Arfè, Giuseppe, Herrington, Richard, Boni, Maria, Wilkinson, Clara, Mormone, Angela (2018) Germanium enrichment in supergene settings: evidence from the Cristal nonsulfide Zn prospect, Bongará district, northern Peru. Mineralium Deposita, 53 (2) 155-169 doi:10.1007/s00126-017-0781-1 | Journal (article/letter/editorial) | | (mean values 100 to 229 ppm, max 511 ppm) and hemimorphite (mean values 39 to 137 ppm, max 258 ppm) are...Zn nonsulfide deposits . Critical elements . Hemimorphite . Goethite . Sphalerite . Laser ablation LA-ICP-MS...hydrozincite, and cerussite) and the Zn-silicates hemimorphite, willemite, and sauconite (Large 2001; Hitzman...ratios to an internal standard element (29Si for hemimorphite, 57Fe for goethite and hematite, and 66Zn for...calibration standard. This was NIST 612 for hemimorphite and GSD-1G glass (USGS) for goethite. External |  | | Journal (article/letter/editorial) | | and W2, and in scarcely detectable amounts in hemimorphite, goethite and hematite. Indium has low concentrations...range of hydrous Zn-bearing silicates and clays (hemimorphite and sauconite), in addition to remnants of primary...discovered in 1902, and the sulfides were mined until mine closure in 1994 (Kamona and Friedrich, 2007). During...its lifespan, Kabwe was the most significant Zn-Pb mine in Zambia, with production from the sulfide bodies...and relative positions of orebodies on the 850 ft mine level (∼260 m depth from the surface), underlying |  | Mondillo, N., Arfè, G., Boni, M., Balassone, G., Boyce, A., Joachimski, M., Kang, J.S., Villa, I.M. (2018) The Cristal Zinc prospect (Amazonas region, northern Peru) Part I: New insights on the sulfide mineralization in the Bongará province. Ore Geology Reviews, 94. 261-276 doi:10.1016/j.oregeorev.2018.01.021 | Journal (article/letter/editorial) | | but is locally oxidized to smithsonite and hemimorphite. Lead occurs as galena (locally Ag-bearing)...1996; Frenzel et al., 2016), and the Tres Marias Mine in Mexico (Saini-Eidukat et al., 2009), considered...processes. Geochim. Cosmochim. Acta 126, 518–540. Benavides-Cáceres, V., 1999. Orogenic evolution of the Peruvian..., 1990. Sulfur isotope studies in the zinc-lead mine San Vicente, central Peru. In: Fontboté, L., Amstutz...Genesis of the carbonate-hosted Tres Marias Zn-Pb-(Ge) deposit, Mexico: constraints from Rb-Sr sphalerite |  | Mondillo, Nicola, Accardo, Mariafrancesca, Boni, Maria, Boyce, Adrian, Herrington, Richard, Rumsey, Mike, Wilkinson, Clara (2020) New insights into the genesis of willemite (Zn2SiO4) from zinc nonsulfide deposits, through trace elements and oxygen isotope geochemistry. Ore Geology Reviews, 118. 103307 doi:10.1016/j.oregeorev.2019.103307 | Journal (article/letter/editorial) | | formal description of the mineral from the Altenberg mine (Moresnet, 69 Belgium) and he named the new mineral...limited to a few 99 specific examples (e.g. Tres Marias, Mexico, Saini-Eidukat et al., 2009, 2016; Bou 100... 162 were originally formed during weathering (hemimorphite and Mn-Fe-hydroxides), which 163 were derived...and 286 the present day, largely comprise hemimorphite, smithsonite, hydrozincite, Zn-clays and 287...(Coppola et al., 2008). The Altenberg-Vieille Montagne mine, 289 also known as La Calamine, was the largest |  | Wei, Chen, Ye, Lin, Hu, Yusi, Danyushevskiy, Leonid, Li, Zhenli, Huang, Zhilong (2019) Distribution and occurrence of Ge and related trace elements in sphalerite from the Lehong carbonate-hosted Zn-Pb deposit, northeastern Yunnan, China: Insights from SEM and LA-ICP-MS studies. Ore Geology Reviews, 115. 103175 doi:10.1016/j.oregeorev.2019.103175 | Journal (article/letter/editorial) | | wt.%) sphalerite from Tres Marias carbonatehosted Zn-Pb-(Ge) deposit in Mexico due to lack of correlation...and F5 faults are the most important faults in the mine area. The F1 thrust fault strikes 300°-340° with...supergene ore is composed of smithsonite, goethite, hemimorphite, hydrozincite and cerussite (Huang, 2003). The...tetravalent site of Ge-rich sphalerite from Tres Marias (Cook et al., 2015). Similar oxidation states |  | | Journal (article/letter/editorial) | | structure on natural minerals from the Henderson #2 mine in Canada (Goh et al., 2010); and a study on the...concentrations of Au in mica minerals from the Gonçalo Li Mine (Portugal), with the aim of developing an exploration...of the ore characterisation workflow early in the mine life cycle. - Whereas the sXRF mapping provides...overlying the polymetallic sulphide ores of the Mikawa mine (Japan). Saini-Eidukat and co-workers (Saini-Eidukat...chemistry in hematite and goethite from the Apex Mine , Utah , and some new data on germanium in aqueous |  | | Report (volume) | | ___.___--__-___ Geologic sketch map of Sao Joao mine and Pimenteira prospect__ _ --------------__-_-___-_---__---_...properties. Electric power is not yet available for mine use. Small diesel powerplants furnish Januaria and... is capable of providing adequate water for the mine. A mill for concentration of ores from the Itacarambi...beds are flat lying, at the mine they dip 5°-15° E., and east of the mine they dip 20° E. The shale and...longitudinal fault in the valley immediately south of the mine. The Estaca Onze fracture zone at Mina Janelao is |  | | Report (issue) | | the drainage to the Atlantic and to the Gulfs of Mexico and St. Lawrence _____________________________...to the Atlantic Ocean from that to the Gulf of Mexico and St. Lawrence River. Figure 2, a subenvelope...the drainage to the Atlantic and to the Gulfs of Mexico and St. Lawrence. Localities referred to in text...forms the continental divide between the Gulf of Mexico and Atlantic drainages. The relief and alti tudes...Argillization in the Cochise Mining District, New Mexico: Clays and Clay Minerals, v. 6, p. 342-368. Carlisle |  | | Book (volume) | | the biographical article, Clerke, A. M. A. N. Mexico: Moliere. See the biographical article, Lang,...biographical article, Dilke, Sir C. W., Bart. Mexico: ' Mendicant Movement and Orders; Monasticism;...of Manchester. H. W. C. D. Mediterranean Sea; Mexico, Gulf of. Metempsychosis. Professor of New Testament...Portfolio of Musical A rchaeology. Orchestra. L. Bl. Mexico: Modern History. Professor of Greek at Joint-author...John’s College, Cambridge. tion Fund. R. C. P. Mexico: Geology. { Medici M.A., F.S.A. Reginald Crundall |
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